HAROLD A YOON (MD) – Radiation Oncology Physician, NPI 1558566984
Radiation Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
312 RADIATION ONCOLOGY in IL
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Provider Addresses for HAROLD A YOON (MD)
West McKinley Avenue, Decatur, Macon County, Illinois, 62526, United States
DECATUR, IL 625265858
Phone: (217) 877-9442
Fax: (217) 233-1670
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 311 Open Payments records for all available years, with a total value of $6,237.
Total Amount is formed as General ($6,237) + Research ($0) + Ownership ($0) = $6,237.
Last reported payment date: 2024-12-27 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($689).
Total Amount
$6,237
General + Research + Ownership
Payments
311
Total payment records
General Amount
$6,237
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $689 |
| Novartis Pharmaceuticals Corporation | $624 |
| Merck Sharp & Dohme LLC | $324 |
| ABBVIE INC. | $322 |
| Janssen Biotech, Inc. | $320 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2008-06-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20080612000335 | I | Radiation Oncology | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| Q9967 | Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 2,600 | 21 | $0 |
| 77014 | Ct guidance for insertion of radiation therapy fields | 1,027 | 55 | $0 |
| G6002 | Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 571 | 34 | $0 |
| 77427 | Radiation treatment management, 5 treatment sessions | 400 | 84 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 290 | 230 | $0 |
Insurance plans in this area (ZIP 62526)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| H E M A T O L O G Y/ O N C O L O G Y | IL | |
| H E M A T O L O G Y/ O N C O L O G Y | IL | |
| H E M A T O L O G Y/ O N C O L O G Y | IL | |
| Hematology/Oncology, Internal Medicine | IL |
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